>>3255351> Are the aperture/f numbers always going to be the same, with a few lower ones depending on the lens used?The standard sequence of apertures starts with f/1.0, then f/1.4, f/2.0, f/2.8, etc. The easy way to remember this is that you start with f/1.0 and f/1.4 and alternate doubling them. The complicated way to remember this is that each full stop is the previous one times the square root of two (which is why you double it for every second stop--sqrt(2)*sqrt(2) is 2).
When a lens has a minimum aperture that's not on a full stop (e.g., the many f/1.8 and f/1.2 primes out there, Minolta's old 50/1.7, the f/0.95 Noctilux, etc), they still follow the standard sequence when they go up.
So yes, 5.6, 8, 11, 16, and 22 are in the standard list of full-stop apertures. The full list you'll usually encounter is:
1.0, 1.4, 2.0, 2.8, 4.0, 5.6, 8, 11, 16, 22, 32, 44, 64
